/**
 * Copyright 2013 Simeon Malchev
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.vibur.dbcp.pool;

import java.sql.Connection;

/**
 * Represents the state object which we hold in the object pool. It is just a thin wrapper class
 * which allows us to augment the Connection object with useful additional "state" information
 * like the {@code lastTimeUsedInMillis} and similar.
 *
 * @author Simeon Malchev
 */
public class ConnState {

    private final Connection connection;
    private final int version;
    private long lastTimeUsedInMillis;

    public ConnState(Connection connection, int version, long lastTimeUsedInMillis) {
        if (connection == null)
            throw new NullPointerException();
        this.connection = connection;
        this.version = version;
        this.lastTimeUsedInMillis = lastTimeUsedInMillis;
    }

    public Connection connection() {
        return connection;
    }

    public int version() {
        return version;
    }

    public long getLastTimeUsedInMillis() {
        return lastTimeUsedInMillis;
    }

    public void setLastTimeUsedInMillis(long lastTimeUsedInMillis) {
        this.lastTimeUsedInMillis = lastTimeUsedInMillis;
    }
}
